如何在ASP.NET Core中使用C#上传和下载PDF文件 | IronPDF
Most document features start the same way: accept a file from a user, then hand one back.
This video walks through uploading and downloading PDF files in ASP.NET using C# and IronPDF. It covers accepting an uploaded PDF, working with the file stream, processing the document on the server, and delivering a PDF back to the user as a download. These are the building blocks behind document-management features, and the video shows how to wire the upload and download endpoints together in a .NET application. The same pattern scales from a single form to a full document pipeline.

